278315908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2113}}^1$

素因数の和:2296

約数の個数: 48

約数和(自身を含む): 559364400

約数和(自身を除く): 281048492

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 149, 221, 298, 442, 596, 884, 1937, 2113, 2533, 3874, 4226, 5066, 7748, 8452, 10132, 27469, 32929, 35921, 54938, 65858, 71842, 109876, 131716, 143684, 314837, 466973, 629674, 933946, 1259348, 1867892, 4092881, 5352229, 8185762, 10704458, 16371524, 21408916, 69578977, 139157954, 278315908]

約数ペア:

[(1, 278315908), (2, 139157954), (4, 69578977), (13, 21408916), (17, 16371524), (26, 10704458), (34, 8185762), (52, 5352229), (68, 4092881), (149, 1867892), (221, 1259348), (298, 933946), (442, 629674), (596, 466973), (884, 314837), (1937, 143684), (2113, 131716), (2533, 109876), (3874, 71842), (4226, 65858), (5066, 54938), (7748, 35921), (8452, 32929), (10132, 27469)]